Each Web site on the Internet has at least one Internet Protocol (IP) address assigned to it. Knowing a Web site's IP address can be useful for in several situations: to bypass website blocking tools, to block specific sites (such as when administering a home network), to help narrow down the geographic location of a Web server
Finding these addresses can be complicated. They are not usually displayed in Web browsers. Additionally, larger Web sites use a pool of IP addresses rather than just one, meaning that the address being used one day might change the next. Two person in different parts of the world will often obtain different IP addresses for the same site even if they use the same lookup methods.They will have a different IP address.
Using Ping- The ping utility can be used to look up IP addresses of Web sites (and any other kind of running network device). Ping attempts to contact the site by name and will report back the IP address it finds along with other information about the connection. For example, to find the IP address of lifewire.com on a desktop computer, entering the command